A pressurized roller with adaptive adjustment

Abstract

The utility model belongs to the technical field of pressure roller self -adaptation adjustment, specifically is a kind of pressure roller with self -adaptation adjustment, including fixed link, the end of fixed link is fixedly connected with pressure roller;Limiting groove is set on the lateral wall of pressure roller;Supporting piece is slidably connected on the inner side wall of limiting groove;Spring groove is set on the lateral wall of pressure roller;Rubber ring is arranged on the lateral wall of supporting piece;Air hole is set in the inside of pressure roller;Reset spring is fixedly connected between pressure roller and supporting piece;The utility model sets up limiting groove supporting rubber ring, and reset spring is set simultaneously, so that supporting piece can be self -adapted movement, the deformable range of rubber ring is increased, and the self -adaptation adjustment range of the pressure roller is further enhanced, it is favorable to meet the printing demand of thicker paper.

Description

Technical Field

[0001] This utility model belongs to the field of adaptive adjustment technology of pressure rollers, specifically a pressure roller with adaptive adjustment. Background Technology

[0002] The pressure roller is a key component of the printer's fusing system, primarily used to firmly adhere toner to the printing paper. Generally, the pressure roller consists of a pressure mandrel and a rubber casing surrounding the mandrel. The mandrel is usually a metal cylinder with sealing plugs at both ends, such as left and right enamel, to prevent internal air leakage and ensure structural stability.

[0003] Existing pressure rollers typically clamp papers of different thicknesses by relying on the deformation of the outer rubber layer under stress. During this process, the degree of deformation of the rubber sheet directly affects the adaptive adjustment capability of the pressure roller. However, when dealing with thicker papers, it is difficult to cope with the pressure roller's rubber layer alone.

[0004] Therefore, this utility model provides a pressure roller with adaptive adjustment. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A pressure roller with adaptive adjustment, comprising a fixed rod, the end of which is fixedly connected to a pressure roller; a limiting groove is formed on the side wall of the pressure roller, and multiple limiting grooves are correspondingly arranged; a support plate is slidably connected to the inner side wall of the limiting groove; a spring groove is formed on the side wall of the pressure roller, and multiple spring grooves are arranged corresponding to the positions of the limiting grooves; a rubber ring is provided on the side wall of the support plate; a vent hole is formed inside the pressure roller; a return spring is fixedly connected between the pressure roller and the support plate; through the above structure, the limiting groove supports the rubber ring, and the return spring allows the support plate to move adaptively, increasing the deformable range of the rubber ring, thereby enhancing the adaptive adjustment range of the pressure roller, which is beneficial for meeting the printing needs of thicker paper.

[0007] Preferably, a first limiting ring and a second limiting ring are fixedly connected to the side wall of the fixing rod; a first fixing block is fixedly connected to the side wall of the first limiting ring, and a second fixing block is fixedly connected to the side wall of the fixing rod; a motor is fixedly connected to the side wall of the first fixing block; a first gear is rotatably connected between the first fixing block and the second fixing block; a second gear meshes with the side wall of the first gear, and the second gear is rotatably connected to the fixing rod; an exhaust hole is provided on the side wall of the second gear, and multiple exhaust holes are arranged at positions corresponding to vent holes; through the above structure, the angle of the second gear is adjusted by the motor, thereby controlling the opening and closing of multiple vent holes inside the pressure roller, and finally using the internal air pressure of the pressure roller to adjust the sensitivity of multiple support plates, enhancing the flexibility and practicality of the pressure roller.

[0008] Preferably, a sealing ring is fixedly connected to the side wall of the second gear; an air outlet is provided on the side wall of the sealing ring, and multiple air outlets are respectively arranged at the positions of the exhaust holes; the sealing ring is made of plastic material; through the above structure, a sealing ring is provided on the side wall of the second gear, and an air outlet is provided on the side wall of the sealing ring, which gives full play to the advantage of the good sealing effect of the plastic material of the sealing ring, and helps to prevent gas from overflowing through the gap between the first limiting ring and the second gear.

[0009] Preferably, a protective shell is fixed between the fixing rod and the first limiting ring, and the protective shell is configured to correspond to the dimensions of the first gear and the second gear. With the above structure, the protective shell is fixed between the fixing rod and the first limiting ring to protect the first gear and the second gear, which helps to prevent dust such as carbon powder from entering between the first gear and the second gear, and helps to enhance the stability and durability of the pressure roller.

[0010] Preferably, a fixing protrusion is fixedly connected to the side wall of the support plate, and the two fixing protrusions are arranged in a corresponding manner; through the above structure, the fixing protrusion is fixed on the side wall of the support plate, and the fixing protrusion is used to embed the rubber ring, so as to avoid the rubber ring from slipping, which is beneficial to improving the working stability of the pressure roller.

[0011] Preferably, a sealing plug is fixed to the side wall of the sealing ring, and multiple sealing plugs are arranged in a circumferential array. Through the above structure, the sealing plug enhances the sealing strength of the sealing ring, which helps to avoid air leakage and enhances the stability of the pressure roller.

[0012] Preferably, the fixing rod, pressure roller, first limiting ring, and second limiting ring are made of aluminum alloy. The use of aluminum alloy for the fixing rod, pressure roller, first limiting ring, and second limiting ring enhances their structural strength, reduces their weight, and helps extend the service life of the pressure roller.

[0013] The beneficial effects of this utility model are as follows: 1. The pressure roller with adaptive adjustment described in this utility model, by setting a limiting groove to support the rubber ring and setting a return spring, allows the support plate to move adaptively, increasing the deformable range of the rubber ring, thereby enhancing the adaptive adjustment range of the pressure roller, which is beneficial to meeting the printing needs of thicker paper.

[0014] 2. The pressure roller with adaptive adjustment described in this utility model controls the opening and closing of multiple air holes inside the pressure roller by adjusting the angle of the second gear with a motor. Finally, the internal air pressure of the pressure roller is used to adjust the sensitivity of multiple support plates, thereby enhancing the flexibility and practicality of the pressure roller. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] Figure 1 This is a perspective view of the present invention; Figure 2 This is a schematic diagram of the structure of the rubber ring in this utility model; Figure 3 This is a schematic diagram of the pressure roller in this utility model; Figure 4 This is a schematic diagram of the structure of the second gear in this utility model; Figure 5 This is a schematic diagram of the structure of the support sheet in this utility model.

[0017] In the diagram: 1. Fixed rod; 11. Pressure roller; 12. Limiting groove; 13. Support plate; 14. Spring groove; 15. Rubber ring; 16. Vent hole; 17. Return spring; 2. First limiting ring; 21. Second limiting ring; 22. First fixing block; 23. Second fixing block; 24. Motor; 25. First gear; 26. Second gear; 27. Exhaust hole; 3. Sealing ring; 31. Vent hole; 4. Protective shell; 5. Fixing protrusion; 6. Sealing plug. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0019] Specific implementation examples are given below.

[0020] like Figures 1 to 5As shown, an adaptive adjustment pressure roller according to an embodiment of the present invention includes a fixed rod 1, with a pressure roller 11 fixedly connected to the end of the fixed rod 1; a limiting groove 12 is formed on the side wall of the pressure roller 11, and multiple limiting grooves 12 are correspondingly arranged; a support plate 13 is slidably connected to the inner side wall of the limiting groove 12; a spring groove 14 is formed on the side wall of the pressure roller 11, and multiple spring grooves 14 are arranged corresponding to the positions of the limiting grooves 12; a rubber ring 15 is provided on the side wall of the support plate 13; a vent hole 16 is formed inside the pressure roller 11; a return spring 17 is fixedly connected between the pressure roller 11 and the support plate 13; during operation, whenever the pressure roller applies pressure to thicker paper, the rubber ring 15 provided on the side walls of the multiple support plates 13 will be subjected to the reaction force of the paper and deform, and then... The corresponding support plate 13 set on the side wall of the pressure roller 11 can move to a certain extent by compressing the return spring 17. After the support plate 13 moves, the corresponding part of the rubber ring 15 will lose the support of the support plate 13 and thus deform further, so that thicker paper can pass through smoothly. Among them, the spring groove 14 serves to accommodate the return spring 17, the fixing rod 1 serves to fix the transmission, the limiting groove 12 serves to limit the support plate 13, and the vent hole 16 serves to exhaust air. Through the above structure, the limiting groove 12 supports the rubber ring 15, and the return spring 17 allows the support plate 13 to move adaptively, increasing the deformable range of the rubber ring 15, thereby enhancing the adaptive adjustment range of the pressure roller, which is beneficial to meeting the printing needs of thicker paper.

[0021] like Figures 1 to 4As shown, a first limiting ring 2 and a second limiting ring 21 are fixedly connected to the side wall of the fixing rod 1; a first fixing block 22 is fixedly connected to the side wall of the first limiting ring 2, and a second fixing block 23 is fixedly connected to the side wall of the fixing rod 1; a motor 24 is fixedly connected to the side wall of the first fixing block 22; a first gear 25 is rotatably connected between the first fixing block 22 and the second fixing block 23; a second gear 26 meshes with the side wall of the first gear 25, and the second gear 26 is rotatably connected to the fixing rod 1; an exhaust hole 27 is provided on the side wall of the second gear 26, and multiple exhaust holes 27 are arranged corresponding to the positions of the vent holes 16; during operation, the operator can adjust the opening and closing of the vent holes 16 by driving the motor 24, thereby controlling the movement state of the support plate 13. Whenever the motor 24 is driven, the first gear 25, which is fixed to the output end of the motor 24 and rotatably connected between the first fixing block 22 and the second fixing block 23, will rotate. After the first gear 25 rotates, the second gear 26, which meshes with the first gear 25, will rotate synchronously. Whenever the multiple exhaust holes 27 on the side wall of the second gear 26 are aligned with the vent holes 16 on the side wall of the first limiting ring 2, gas can be discharged through the vent holes 16 and the exhaust holes 27, and the support plate 13 can move freely. Whenever the exhaust holes 27 and the vent holes 16 are misaligned, the vent holes 16 will be blocked by the second gear 26 and will not be able to discharge. At this time, the support plate 13 will not easily be displaced by the air pressure inside the pressure roller 11. The first limiting ring 2 and the second limiting ring 21 can simultaneously act as limiting rubber rings 15. Through the above structure, the motor 24 is set to adjust the angle of the second gear 26, thereby controlling the opening and closing of the multiple vent holes 16 inside the pressure roller 11. Finally, the sensitivity of the multiple support plates 13 is adjusted by the internal air pressure of the pressure roller 11, which enhances the flexibility and practicality of the pressure roller.

[0022] like Figure 4 As shown, a sealing ring 3 is fixedly attached to the side wall of the second gear 26; an air outlet 31 is provided on the side wall of the sealing ring 3, and multiple air outlets 31 are respectively set at the positions of the exhaust holes 27; the sealing ring 3 is made of plastic; during operation, the sealing ring 3 made of plastic can take advantage of its good sealing effect to replace the second gear 26 in contact with the side wall of the first limiting ring 2, wherein the multiple air outlets 31 serve to connect the vent hole 16 and the exhaust hole 27; through the above structure, the sealing ring 3 is set on the side wall of the second gear 26, and an air outlet 31 is opened on the side wall of the sealing ring 3, giving full play to the good sealing effect of the plastic material of the sealing ring 3, which helps to prevent gas from overflowing through the gap between the first limiting ring 2 and the second gear 26.

[0023] like Figure 1 , Figure 2 and Figure 4As shown, a protective shell 4 is fixed between the fixed rod 1 and the first limiting ring 2, and the protective shell 4 is sized to correspond to the first gear 25 and the second gear 26. During operation, the protective shell 4 fixed between the fixed rod 1 and the first limiting ring 2 can protect the first gear 25 and the second gear 26 by itself, preventing impurities such as carbon powder from falling between the first gear 25 and the second gear 26. Through the above structure, the protective shell 4 fixed between the fixed rod 1 and the first limiting ring 2 protects the first gear 25 and the second gear 26, which helps to prevent dust such as carbon powder from entering between the first gear 25 and the second gear 26, and helps to enhance the stability and durability of the pressure roller.

[0024] like Figure 2 , Figure 3 and Figure 5 As shown, a fixing protrusion 5 is fixedly connected to the side wall of the support plate 13, and the two fixing protrusions 5 are arranged correspondingly. During operation, the two fixing protrusions 5 fixed to the side wall of the support plate 13 can enhance the connection stability between the support plate 13 and the rubber ring 15 by embedding the rubber ring 15, which helps to prevent slippage between the rubber ring 15 and the support plate 13. Through the above structure, fixing protrusions 5 are fixed on the side wall of the support plate 13, and the rubber ring 15 is embedded by the fixing protrusions 5 to prevent the rubber ring 15 from slipping, which helps to improve the working stability of the pressure roller.

[0025] like Figure 4 As shown, a sealing plug 6 is fixed to the side wall of the sealing ring 3, and multiple sealing plugs 6 are arranged in a circumferential array. During operation, whenever multiple sealing plugs 6 rotate to the position of the vent hole 16, the sealing plug 6 itself will lose the compression of the first limiting ring 2 and thus rebound in shape. After rebounding, the sealing plug 6 will enter the interior of the vent hole 16. Through the above structure, the sealing plug 6 enhances the sealing strength of the sealing ring 3, which helps to avoid air leakage and enhances the stability of the pressure roller.

[0026] like Figures 1 to 4 As shown, the fixed rod 1, pressure roller 11, first limiting ring 2, and second limiting ring 21 are made of aluminum alloy. During operation, the use of aluminum alloy in the fixed rod 1, pressure roller 11, first limiting ring 2, and second limiting ring 21 can take advantage of the high structural strength and low density of aluminum alloy. Through the above, the use of aluminum alloy in the fixed rod 1, pressure roller 11, first limiting ring 2, and second limiting ring 21 enhances their structural strength, reduces their weight, and helps extend the service life of the pressure roller.

[0027] During operation, whenever the pressure roller applies pressure to thicker paper, the rubber rings 15 on the sidewalls of the multiple support plates 13 will be subjected to the reaction force of the paper and deform. Subsequently, the corresponding support plates 13 on the sidewalls of the pressure roller 11 can move to a certain extent by compressing the return springs 17. After the support plates 13 move, the corresponding parts of the rubber rings 15 will lose the support of the support plates 13 and deform further, ultimately allowing the thicker paper to pass through smoothly. Among them, the spring groove 14 serves to accommodate the return spring 17, the fixing rod 1 serves to fix the transmission, the limiting groove 12 serves to limit the support plates 13, and the vent hole 16 serves to exhaust air. The operator can adjust the opening and closing of the vent 16 by driving the motor 24, thereby controlling the movement of the support plate 13. Whenever the motor 24 is driven, the first gear 25, fixed to the output end of the motor 24 and rotatably connected between the first fixed block 22 and the second fixed block 23, will rotate. After the first gear 25 rotates, the second gear 26, which meshes with the first gear 25, will rotate synchronously. Whenever the multiple exhaust holes 27 on the side wall of the second gear 26 align with the vent 16 on the side wall of the first limiting ring 2, gas can be discharged through the vent 16 and exhaust holes 27, allowing the support plate 13 to move freely. When the exhaust port 27 and the vent 16 are misaligned, the vent 16 will be blocked by the second gear 26 and will not be able to discharge. At this time, the support plate 13 will not easily move due to the air pressure inside the pressure roller 11. The first limiting ring 2 and the second limiting ring 21 can simultaneously act as the limiting rubber ring 15. The sealing ring 3 made of plastic can take advantage of its good sealing effect to replace the second gear 26 in contact with the side wall of the first limiting ring 2. The multiple air outlets 31 serve to connect the vent 16 and the exhaust port 27. The protective shell 4, which is fixed between the fixing rod 1 and the first limiting ring 2, can protect the first gear 25 and the second gear 26 by itself. Inside, to prevent impurities such as carbon powder from falling between the first gear 25 and the second gear 26, the two fixed protrusions 5 fixed to the side wall of the support plate 13 can enhance the connection stability between the support plate 13 and the rubber ring 15 by embedding the rubber ring 15, which helps to prevent slippage between the rubber ring 15 and the support plate 13. Whenever multiple sealing plugs 6 rotate to the position of the vent hole 16, the sealing plug 6 itself will lose the compression of the first limiting ring 2 and thus rebound in shape. After the sealing plug 6 rebounds, it will enter the interior of the vent hole 16. The fixed rod 1, pressure roller 11, first limiting ring 2, and second limiting ring 21 made of aluminum alloy can take advantage of the high strength and low density of the aluminum alloy structure.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A pressure roller with adaptive adjustment, comprising a fixed rod (1), characterized in that: A pressure roller (11) is fixedly connected to the end of the fixed rod (1); a limiting groove (12) is opened on the side wall of the pressure roller (11), and multiple limiting grooves (12) are arranged in a corresponding manner; a support plate (13) is slidably connected to the inner side wall of the limiting groove (12); a spring groove (14) is opened on the side wall of the pressure roller (11), and multiple spring grooves (14) are arranged in a position corresponding to the limiting groove (12); a rubber ring (15) is provided on the side wall of the support plate (13); a vent hole (16) is opened inside the pressure roller (11); a return spring (17) is fixedly connected between the pressure roller (11) and the support plate (13).

2. The pressure roller with adaptive adjustment according to claim 1, characterized in that: A first limiting ring (2) and a second limiting ring (21) are fixedly connected to the side wall of the fixed rod (1); a first fixing block (22) is fixedly connected to the side wall of the first limiting ring (2), and a second fixing block (23) is fixedly connected to the side wall of the fixed rod (1); a motor (24) is fixedly connected to the side wall of the first fixing block (22); a first gear (25) is rotatably connected between the first fixing block (22) and the second fixing block (23); a second gear (26) meshes on the side wall of the first gear (25), and the second gear (26) is rotatably connected to the fixed rod (1); an exhaust hole (27) is opened on the side wall of the second gear (26), and multiple exhaust holes (27) are arranged corresponding to the positions of the vent holes (16).

3. A pressure roller with adaptive adjustment according to claim 2, characterized in that: A sealing ring (3) is fixed to the side wall of the second gear (26); an air outlet (31) is provided on the side wall of the sealing ring (3), and multiple air outlets (31) are respectively set at the positions of the exhaust holes (27); the sealing ring (3) is made of plastic.

4. A pressure roller with adaptive adjustment according to claim 3, characterized in that: A protective shell (4) is fixed between the fixed rod (1) and the first limiting ring (2), and the protective shell (4) is configured to correspond to the size of the first gear (25) and the second gear (26).

5. A pressure roller with adaptive adjustment according to claim 4, characterized in that: The support plate (13) has a fixed protrusion (5) fixed on its side wall, and the two fixed protrusions (5) are arranged in a corresponding manner.

6. A pressure roller with adaptive adjustment according to claim 5, characterized in that: A sealing plug (6) is fixed to the side wall of the sealing ring (3), and a plurality of the sealing plugs (6) are arranged in a circumferential array.

7. A pressure roller with adaptive adjustment according to claim 6, characterized in that: The fixed rod (1), pressure roller (11), first limiting ring (2), and second limiting ring (21) are made of aluminum alloy.

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